On Thu, 21 Mar 2024 07:11:33 GMT, Serguei Spitsyn <sspit...@openjdk.org> wrote:
> This PR fixes a synchronization issue in the test: > `test/hotspot/jtreg/serviceability/jvmti/vthread/PopFrameTest` > > The method `notifyAtBreakpoint()` can notify the `TestTask` thread when it > has not reached an expected breakpoint yet. > The fix is to add a call to the method `ensureAtBreakpoint()` one more time > in the `B2` sub-test. It is needed after the top-most frame was popped with > the JVMTI `PopFrame`, and the target thread needs to reach the breakpoint > again after its execution was resumed. > > The time is very intermittent. At least, I was not able to reproduce the > timeout failure in thousands of mach5 runs with the `-Xcomp` option. > > Testing: > - Run the test > `test/hotspot/jtreg/serviceability/jvmti/vthread/PopFrameTest` thousands > times in mach5 This pull request has now been integrated. Changeset: 70c8ff1c Author: Serguei Spitsyn <sspit...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/70c8ff1c9a9adf21a16d8a6b4da1eeec65afe61d Stats: 17 lines in 1 file changed: 9 ins; 2 del; 6 mod 8328665: serviceability/jvmti/vthread/PopFrameTest failed with a timeout Reviewed-by: lmesnik, cjplummer ------------- PR: https://git.openjdk.org/jdk/pull/18419
